stephen, california, husband and father of two has cerebral palsy and sunday he left his wheelchair to begin the climb of his life. >> how is it going, man? >> reporter: steve is aiming to become the first person with cerebral palsy to climb the famed elcapitan in yosemite national park. it is a towering challenge. this is not just one empire state building, but two. [ audio not understandable ] >> reporter: today suspended 1,000 feet above ground we called him. hey, steve? it's david muehr in new york. how are you? >> good, and you? >> i guess you're just hanging out. >> if you want to call did that. >> reporter: he's been climbing and sleeping on elcapitan for three days now. >> you're more than halfway there. >> yes. >> reporter: and none of this is surprising for the woman who 15 years ago became steve's wife. >> i thought i bet he's having a hard life. i quickly learned that's not true. >> reporter: steve has taught everyone he knows disabilities don't have to limit you. >> your wife is going to see this on tv tonight. what do you want to say to her? >> i love you, and i can't wai